This bug is awaiting verification that the linux-oem-6.1/6.1.0-1025.25
kernel in -proposed solves the problem. Please test the kernel and
update this bug with the results. If the problem is solved, change the
tag 'verification-needed-jammy-linux-oem-6.1' to 'verification-done-
jammy-linux-oem-6.1'. If the problem still exists, change the tag
'verification-needed-jammy-linux-oem-6.1' to 'verification-failed-jammy-
linux-oem-6.1'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-jammy-linux-oem-6.1-v2 
verification-needed-jammy-linux-oem-6.1

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Packages, which is subscribed to linux-oem-6.1 in Ubuntu.
https://bugs.launchpad.net/bugs/2036515

Title:
  Fix system boot hang caused by devlink

Status in HWE Next:
  New
Status in linux package in Ubuntu:
  Fix Released
Status in linux-oem-6.1 package in Ubuntu:
  Invalid
Status in linux source package in Jammy:
  Won't Fix
Status in linux-oem-6.1 source package in Jammy:
  Fix Committed
Status in linux source package in Lunar:
  Confirmed
Status in linux-oem-6.1 source package in Lunar:
  Invalid

Bug description:
  [Impact]
  System stuck at boot when Intel 7560 is in use, because devlink
  is waiting for reference to be released.

  [Fix]
  Commit "devlink: remove the registration guarantee of references"
  weakens the refcount requirement for devlink {,un}registering,

  [Test]
  System reboots over 2000 times when the fix is applied.

  [Where problems could occur]
  devlink is part of net core API, so it has many users, therefore all of
  devlink users can be affected by this fix. However, all the devlink
  users can be affected by the same issue (i.e. waiting for reference to
  decrease to 0), hence this is still a desirable fix.

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